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-rw-r--r--drivers/gpu/drm/nouveau/nouveau_mem.c1
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_sgdma.c31
-rw-r--r--drivers/gpu/drm/radeon/radeon.h4
-rw-r--r--drivers/gpu/drm/radeon/radeon_gart.c36
-rw-r--r--drivers/gpu/drm/radeon/radeon_ttm.c9
-rw-r--r--drivers/gpu/drm/ttm/ttm_agp_backend.c3
-rw-r--r--drivers/gpu/drm/ttm/ttm_page_alloc.c35
-rw-r--r--drivers/gpu/drm/ttm/ttm_tt.c12
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c3
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_drv.c2
10 files changed, 103 insertions, 33 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c
index 123969dd4f5..2b4e5e91211 100644
--- a/drivers/gpu/drm/nouveau/nouveau_mem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_mem.c
@@ -409,6 +409,7 @@ nouveau_mem_vram_init(struct drm_device *dev)
if (ret)
return ret;
+ dev_priv->ttm.bdev.dev = dev->dev;
ret = ttm_bo_device_init(&dev_priv->ttm.bdev,
dev_priv->ttm.bo_global_ref.ref.object,
&nouveau_bo_driver, DRM_FILE_PAGE_OFFSET,
diff --git a/drivers/gpu/drm/nouveau/nouveau_sgdma.c b/drivers/gpu/drm/nouveau/nouveau_sgdma.c
index 9a250eb5309..07b115184b8 100644
--- a/drivers/gpu/drm/nouveau/nouveau_sgdma.c
+++ b/drivers/gpu/drm/nouveau/nouveau_sgdma.c
@@ -12,6 +12,7 @@ struct nouveau_sgdma_be {
struct drm_device *dev;
dma_addr_t *pages;
+ bool *ttm_alloced;
unsigned nr_pages;
u64 offset;
@@ -20,7 +21,8 @@ struct nouveau_sgdma_be {
static int
nouveau_sgdma_populate(struct ttm_backend *be, unsigned long num_pages,
- struct page **pages, struct page *dummy_read_page)
+ struct page **pages, struct page *dummy_read_page,
+ dma_addr_t *dma_addrs)
{
struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be;
struct drm_device *dev = nvbe->dev;
@@ -34,15 +36,25 @@ nouveau_sgdma_populate(struct ttm_backend *be, unsigned long num_pages,
if (!nvbe->pages)
return -ENOMEM;
+ nvbe->ttm_alloced = kmalloc(sizeof(bool) * num_pages, GFP_KERNEL);
+ if (!nvbe->ttm_alloced)
+ return -ENOMEM;
+
nvbe->nr_pages = 0;
while (num_pages--) {
- nvbe->pages[nvbe->nr_pages] =
- pci_map_page(dev->pdev, pages[nvbe->nr_pages], 0,
+ if (dma_addrs[nvbe->nr_pages] != DMA_ERROR_CODE) {
+ nvbe->pages[nvbe->nr_pages] =
+ dma_addrs[nvbe->nr_pages];
+ nvbe->ttm_alloced[nvbe->nr_pages] = true;
+ } else {
+ nvbe->pages[nvbe->nr_pages] =
+ pci_map_page(dev->pdev, pages[nvbe->nr_pages], 0,
PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
- if (pci_dma_mapping_error(dev->pdev,
- nvbe->pages[nvbe->nr_pages])) {
- be->func->clear(be);
- return -EFAULT;
+ if (pci_dma_mapping_error(dev->pdev,
+ nvbe->pages[nvbe->nr_pages])) {
+ be->func->clear(be);
+ return -EFAULT;
+ }
}
nvbe->nr_pages++;
@@ -65,11 +77,14 @@ nouveau_sgdma_clear(struct ttm_backend *be)
be->func->unbind(be);
while (nvbe->nr_pages--) {
- pci_unmap_page(dev->pdev, nvbe->pages[nvbe->nr_pages],
+ if (!nvbe->ttm_alloced[nvbe->nr_pages])
+ pci_unmap_page(dev->pdev, nvbe->pages[nvbe->nr_pages],
PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
}
kfree(nvbe->pages);
+ kfree(nvbe->ttm_alloced);
nvbe->pages = NULL;
+ nvbe->ttm_alloced = NULL;
nvbe->nr_pages = 0;
}
}
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index a4605362c52..82aa59941aa 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -328,6 +328,7 @@ struct radeon_gart {
union radeon_gart_table table;
struct page **pages;
dma_addr_t *pages_addr;
+ bool *ttm_alloced;
bool ready;
};
@@ -340,7 +341,8 @@ void radeon_gart_fini(struct radeon_device *rdev);
void radeon_gart_unbind(struct radeon_device *rdev, unsigned offset,
int pages);
int radeon_gart_bind(struct radeon_device *rdev, unsigned offset,
- int pages, struct page **pagelist);
+ int pages, struct page **pagelist,
+ dma_addr_t *dma_addr);
/*
diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c
index 65016117d95..a6b0fed7bae 100644
--- a/drivers/gpu/drm/radeon/radeon_gart.c
+++ b/drivers/gpu/drm/radeon/radeon_gart.c
@@ -149,8 +149,9 @@ void radeon_gart_unbind(struct radeon_device *rdev, unsigned offset,
p = t / (PAGE_SIZE / RADEON_GPU_PAGE_SIZE);
for (i = 0; i < pages; i++, p++) {
if (rdev->gart.pages[p]) {
- pci_unmap_page(rdev->pdev, rdev->gart.pages_addr[p],
- PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
+ if (!rdev->gart.ttm_alloced[p])
+ pci_unmap_page(rdev->pdev, rdev->gart.pages_addr[p],
+ PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
rdev->gart.pages[p] = NULL;
rdev->gart.pages_addr[p] = rdev->dummy_page.addr;
page_base = rdev->gart.pages_addr[p];
@@ -165,7 +166,7 @@ void radeon_gart_unbind(struct radeon_device *rdev, unsigned offset,
}
int radeon_gart_bind(struct radeon_device *rdev, unsigned offset,
- int pages, struct page **pagelist)
+ int pages, struct page **pagelist, dma_addr_t *dma_addr)
{
unsigned t;
unsigned p;
@@ -180,15 +181,22 @@ int radeon_gart_bind(struct radeon_device *rdev, unsigned offset,
p = t / (PAGE_SIZE / RADEON_GPU_PAGE_SIZE);
for (i = 0; i < pages; i++, p++) {
- /* we need to support large memory configurations */
- /* assume that unbind have already been call on the range */
- rdev->gart.pages_addr[p] = pci_map_page(rdev->pdev, pagelist[i],
+ /* On TTM path, we only use the DMA API if TTM_PAGE_FLAG_DMA32
+ * is requested. */
+ if (dma_addr[i] != DMA_ERROR_CODE) {
+ rdev->gart.ttm_alloced[p] = true;
+ rdev->gart.pages_addr[p] = dma_addr[i];
+ } else {
+ /* we need to support large memory configurations */
+ /* assume that unbind have already been call on the range */
+ rdev->gart.pages_addr[p] = pci_map_page(rdev->pdev, pagelist[i],
0, PAGE_SIZE,
PCI_DMA_BIDIRECTIONAL);
- if (pci_dma_mapping_error(rdev->pdev, rdev->gart.pages_addr[p])) {
- /* FIXME: failed to map page (return -ENOMEM?) */
- radeon_gart_unbind(rdev, offset, pages);
- return -ENOMEM;
+ if (pci_dma_mapping_error(rdev->pdev, rdev->gart.pages_addr[p])) {
+ /* FIXME: failed to map page (return -ENOMEM?) */
+ radeon_gart_unbind(rdev, offset, pages);
+ return -ENOMEM;
+ }
}
rdev->gart.pages[p] = pagelist[i];
page_base = rdev->gart.pages_addr[p];
@@ -251,6 +259,12 @@ int radeon_gart_init(struct radeon_device *rdev)
radeon_gart_fini(rdev);
return -ENOMEM;
}
+ rdev->gart.ttm_alloced = kzalloc(sizeof(bool) *
+ rdev->gart.num_cpu_pages, GFP_KERNEL);
+ if (rdev->gart.ttm_alloced == NULL) {
+ radeon_gart_fini(rdev);
+ return -ENOMEM;
+ }
/* set GART entry to point to the dummy page by default */
for (i = 0; i < rdev->gart.num_cpu_pages; i++) {
rdev->gart.pages_addr[i] = rdev->dummy_page.addr;
@@ -267,6 +281,8 @@ void radeon_gart_fini(struct radeon_device *rdev)
rdev->gart.ready = false;
kfree(rdev->gart.pages);
kfree(rdev->gart.pages_addr);
+ kfree(rdev->gart.ttm_alloced);
rdev->gart.pages = NULL;
rdev->gart.pages_addr = NULL;
+ rdev->gart.ttm_alloced = NULL;
}
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 1272e4b6a1d..c345e899e88 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -513,6 +513,7 @@ int radeon_ttm_init(struct radeon_device *rdev)
if (r) {
return r;
}
+ rdev->mman.bdev.dev = rdev->dev;
/* No others user of address space so set it to 0 */
r = ttm_bo_device_init(&rdev->mman.bdev,
rdev->mman.bo_global_ref.ref.object,
@@ -647,6 +648,7 @@ struct radeon_ttm_backend {
unsigned long num_pages;
struct page **pages;
struct page *dummy_read_page;
+ dma_addr_t *dma_addrs;
bool populated;
bool bound;
unsigned offset;
@@ -655,12 +657,14 @@ struct radeon_ttm_backend {
static int radeon_ttm_backend_populate(struct ttm_backend *backend,
unsigned long num_pages,
struct page **pages,
- struct page *dummy_read_page)
+ struct page *dummy_read_page,
+ dma_addr_t *dma_addrs)
{
struct radeon_ttm_backend *gtt;
gtt = container_of(backend, struct radeon_ttm_backend, backend);
gtt->pages = pages;
+ gtt->dma_addrs = dma_addrs;
gtt->num_pages = num_pages;
gtt->dummy_read_page = dummy_read_page;
gtt->populated = true;
@@ -673,6 +677,7 @@ static void radeon_ttm_backend_clear(struct ttm_backend *backend)
gtt = container_of(backend, struct radeon_ttm_backend, backend);
gtt->pages = NULL;
+ gtt->dma_addrs = NULL;
gtt->num_pages = 0;
gtt->dummy_read_page = NULL;
gtt->populated = false;
@@ -693,7 +698,7 @@ static int radeon_ttm_backend_bind(struct ttm_backend *backend,
gtt->num_pages, bo_mem, backend);
}
r = radeon_gart_bind(gtt->rdev, gtt->offset,
- gtt->num_pages, gtt->pages);
+ gtt->num_pages, gtt->pages, gtt->dma_addrs);
if (r) {
DRM_ERROR("failed to bind %lu pages at 0x%08X\n",
gtt->num_pages, gtt->offset);
diff --git a/drivers/gpu/drm/ttm/ttm_agp_backend.c b/drivers/gpu/drm/ttm/ttm_agp_backend.c
index f999e36f30b..1c4a72f681c 100644
--- a/drivers/gpu/drm/ttm/ttm_agp_backend.c
+++ b/drivers/gpu/drm/ttm/ttm_agp_backend.c
@@ -47,7 +47,8 @@ struct ttm_agp_backend {
static int ttm_agp_populate(struct ttm_backend *backend,
unsigned long num_pages, struct page **pages,
- struct page *dummy_read_page)
+ struct page *dummy_read_page,
+ dma_addr_t *dma_addrs)
{
struct ttm_agp_backend *agp_be =
container_of(backend, struct ttm_agp_backend, backend);
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c
index b1e02fffd3c..35849dbf3ab 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
@@ -38,6 +38,7 @@
#include <linux/mm.h>
#include <linux/seq_file.h> /* for seq_printf */
#include <linux/slab.h>
+#include <linux/dma-mapping.h>
#include <asm/atomic.h>
@@ -662,7 +663,8 @@ out:
* cached pages.
*/
int ttm_get_pages(struct list_head *pages, int flags,
- enum ttm_caching_state cstate, unsigned count)
+ enum ttm_caching_state cstate, unsigned count,
+ dma_addr_t *dma_address, struct device *dev)
{
struct ttm_page_pool *pool = ttm_get_pool(flags, cstate);
struct page *p = NULL;
@@ -681,14 +683,22 @@ int ttm_get_pages(struct list_head *pages, int flags,
gfp_flags |= GFP_HIGHUSER;
for (r = 0; r < count; ++r) {
- p = alloc_page(gfp_flags);
+ if ((flags & TTM_PAGE_FLAG_DMA32) && dma_address) {
+ void *addr;
+ addr = dma_alloc_coherent(dev, PAGE_SIZE,
+ &dma_address[r],
+ gfp_flags);
+ if (addr == NULL)
+ return -ENOMEM;
+ p = virt_to_page(addr);
+ } else
+ p = alloc_page(gfp_flags);
if (!p) {
printk(KERN_ERR TTM_PFX
"Unable to allocate page.");
return -ENOMEM;
}
-
list_add(&p->lru, pages);
}
return 0;
@@ -720,7 +730,7 @@ int ttm_get_pages(struct list_head *pages, int flags,
printk(KERN_ERR TTM_PFX
"Failed to allocate extra pages "
"for large request.");
- ttm_put_pages(pages, 0, flags, cstate);
+ ttm_put_pages(pages, 0, flags, cstate, NULL, NULL);
return r;
}
}
@@ -731,17 +741,30 @@ int ttm_get_pages(struct list_head *pages, int flags,
/* Put all pages in pages list to correct pool to wait for reuse */
void ttm_put_pages(struct list_head *pages, unsigned page_count, int flags,
- enum ttm_caching_state cstate)
+ enum ttm_caching_state cstate, dma_addr_t *dma_address,
+ struct device *dev)
{
unsigned long irq_flags;
struct ttm_page_pool *pool = ttm_get_pool(flags, cstate);
struct page *p, *tmp;
+ unsigned r;
if (pool == NULL) {
/* No pool for this memory type so free the pages */
+ r = page_count-1;
list_for_each_entry_safe(p, tmp, pages, lru) {
- __free_page(p);
+ if ((flags & TTM_PAGE_FLAG_DMA32) && dma_address) {
+ void *addr = page_address(p);
+ WARN_ON(!addr || !dma_address[r]);
+ if (addr)
+ dma_free_coherent(dev, PAGE_SIZE,
+ addr,
+ dma_address[r]);
+ dma_address[r] = 0;
+ } else
+ __free_page(p);
+ r--;
}
/* Make the pages list empty */
INIT_LIST_HEAD(pages);
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index af789dc869b..0f8fc9ff0c5 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -49,12 +49,16 @@ static int ttm_tt_swapin(struct ttm_tt *ttm);
static void ttm_tt_alloc_page_directory(struct ttm_tt *ttm)
{
ttm->pages = drm_calloc_large(ttm->num_pages, sizeof(*ttm->pages));
+ ttm->dma_address = drm_calloc_large(ttm->num_pages,
+ sizeof(*ttm->dma_address));
}
static void ttm_tt_free_page_directory(struct ttm_tt *ttm)
{
drm_free_large(ttm->pages);
ttm->pages = NULL;
+ drm_free_large(ttm->dma_address);
+ ttm->dma_address = NULL;
}
static void ttm_tt_free_user_pages(struct ttm_tt *ttm)
@@ -105,7 +109,8 @@ static struct page *__ttm_tt_get_page(struct ttm_tt *ttm, int index)
INIT_LIST_HEAD(&h);
- ret = ttm_get_pages(&h, ttm->page_flags, ttm->caching_state, 1);
+ ret = ttm_get_pages(&h, ttm->page_flags, ttm->caching_state, 1,
+ &ttm->dma_address[index], ttm->be->bdev->dev);
if (ret != 0)
return NULL;
@@ -164,7 +169,7 @@ int ttm_tt_populate(struct ttm_tt *ttm)
}
be->func->populate(be, ttm->num_pages, ttm->pages,
- ttm->dummy_read_page);
+ ttm->dummy_read_page, ttm->dma_address);
ttm->state = tt_unbound;
return 0;
}
@@ -298,7 +303,8 @@ static void ttm_tt_free_alloced_pages(struct ttm_tt *ttm)
count++;
}
}
- ttm_put_pages(&h, count, ttm->page_flags, ttm->caching_state);
+ ttm_put_pages(&h, count, ttm->page_flags, ttm->caching_state,
+ ttm->dma_address, ttm->be->bdev->dev);
ttm->state = tt_unpopulated;
ttm->first_himem_page = ttm->num_pages;
ttm->last_lomem_page = -1;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
index 80bc37b274e..87e43e0733b 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
@@ -102,7 +102,8 @@ struct vmw_ttm_backend {
static int vmw_ttm_populate(struct ttm_backend *backend,
unsigned long num_pages, struct page **pages,
- struct page *dummy_read_page)
+ struct page *dummy_read_page,
+ dma_addr_t *dma_addrs)
{
struct vmw_ttm_backend *vmw_be =
container_of(backend, struct vmw_ttm_backend, backend);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 96949b93d92..df04661e2b9 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -322,7 +322,7 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
dev_priv->active_master = &dev_priv->fbdev_master;
-
+ dev_priv->bdev.dev = dev->dev;
ret = ttm_bo_device_init(&dev_priv->bdev,
dev_priv->bo_global_ref.ref.object,
&vmw_bo_driver, VMWGFX_FILE_PAGE_OFFSET,
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-27 00:52:06 +0000